Molding-machine.



w H. RIPPLINGER.

MOLDING MACHINE.

APPLICATION FILED SEPT. s, 1909.

Patented Apr. 19, 1910.

4 SHEETS-SHEET 1.

H. RIPPLINGER. MOLDING MACHINE. APPLICATION FILED SEPT a, 1909.

2 E L mm v.. WW4

K 6 w w? s, m Z 5 .a W?

H. RIPPLINGER.

MOLDING MACHINE.

APPLICATION FILED SEPT. a, 1909.

955,356. Patented Apr. 19, 1910.

4 SHEETS-SHEET 3.

ANDREW a GRAHAM co PflOYO-LIINOGRAP'NERi WW. nc-

H. RIPPLINGER.

MOLDING MACHINE.

APPLICATION FILED SEPT. 3, 1909. 955,356. Patented Apr. 19, 1910.

4 SHEETS-SHEET 4.

nn'rrn s'rans ra'rnivr orrrc.

HENRY RIPPLINGER, OF BELLEVILLE, ILLINOIS, ASSIGNOR OF ONE-THIRD T0 JOHNF. AUG, OF BELLEVILLE, ILLINOIS.

MOLDING-MACHINE.

Specification of Letters Patent.

Patented Apr. 19, 1910.

T 0 all whom it may concern:

Be it known that I, HENRY RIPPLINGER, a citizen of the United States,and a resident of Belleville, county of St. Clair, and State ofIllinois, have invented a new and useful Improvement in hIolding-Wlachines, of which the following is a specification.

My invention relates to molding machines and has for its principalobjects to produce a molding machine of simple construction and of easyoperation and whose parts are adjustable to the various requirements ofthe pattern and of the work.

My invention consists in the construction and arrangements of partshereinafter described and claimed.

In the accompanying drawing, which forms part of this specification, andwherein like symbols refer to like parts wherever they occur, Figure 1is a front elevation of my machine; Fig. 2 is a side elevation thereof;Fig. 3 is a cross section of the mold and adjacent portions of themachine in the position prior to compression; Fig. a is a cross sectionof a finished mold; Fig. 5 is a plan view of the upper presser head;Fig. (3 is a rear elevation of parts of the upper portion of themachine, the trackways being shown in section; and, Fig. 7 is a sideelevation of the match-plate ejecting mechanism.

My machine comprises a framework 1 which is preferably mounted upon awheeled base or truck 2 to facilitate moving it about the foundry. Theupright-s 3 of the frame are preferably tubular and constitute guidewaysfor vertically movable upper and lower presser-heads 4, 5. llach ofthese presserheads is connected at its ends by pivotal links 6, 7 tomanually operable levers 8 fixed on a horizontal shaft 9 journaled inthe base of the machine. In order to regulate the limits of the strokeof said presser heads and properly proportion the pressures on the copeand on the drag, respectively, either the effective lengths of the linksor their points of attachment to the levers are varied. A convenientdevice for this purpose is to provide the links 6, 7 and the hand levers8 with a series of bolt holes 10, the bolts which fasten the links tothe levers being shifted to suit the requirements of any particularcase.

Supported upon uprights 3 are horizontal trackways 11 adapted to supporta match plate 12 between the upper and the lower presserheads. Thesetrackways are mounted on transverse horizontal bars or tubes 13 whichextend through tubular housings 1d provided therefor on the uprights. Byshifting these horizontal bars endwise, that is, transx ersely of themachine, the trackways may be adjusted to any desired width and to poseon the cope 19 of the mold. These hooks are pivotally mounted so thatthey normally assume a nearly vertical position through gravity; butwhen they are lowered against the pins on the sides of the cope, saidhooks are turned aside and then swing back and engage underneath thepins. These hooks are mounted upon a cross bar or member 20 which ismounted in vertical guideways 21 and rests upon a wedge block 22 whichis movable in horizontal guideways 28 provided therefor on the upperpresser head 4. A convenient means for actuating said wedge blockconsists of a lever 24 pivotally mounted on said presser head andprovided in its intermediate portion with an elongated slot 25 throughwhich passes a pin or lug 26 provided therefor on the wedge block. henthe hooks interlock with the cope pins, the manipulation of this leverserves to raise the cope until the follower plate 27 thereon bearsfirmly against the upper presser head, whereby the cope is protectedfrom jarring. Instead of relying entirely upon gravity to swing thehooks into engagement with the pins on the cope, it is preferable toequip the cross bar with a rock arm 28 in position to be raised by thewedge during the first part of its stroke so as to positively turn orrock said cross bar. In such case, the hooks are fastened to the crossbar to turn therewith, but are adjustable lengthwise of said cross barin order to cooperate with copes of different widths.

The match plate 12 has holes in its end portions through which projectlatches 29 which are pivotally mounted on the drag 30, and are normallyheld in interlocking engagement with said match plate by springs 31. Theinner edges of said latches are inclined. Intervenir etwcen each latchand the body of the di is a lever 32 which is pivotally mounted on thedrag to move in a vertical plane and the free end of said lever isprovided with a pin 3 or is otherwise ad; pled to be actuated bv amember 34 movable with the lower presser-liead. its illustrated in thedrawing, such member is merely a pin 34 mounted on a rod 35 which isadjusted in a horizontal housing 36, the housing itself being mountedupon a vertical rod or tube 37 which is supported on the lowerpresser-head so as to be vertically adjustable thereon. Thus, themechanism for tripping and disengaging the drag from the match-plate maybe adjusted both verti :ally and horizontally.

In order to remove the match plate out of alinement with thepresser-heads and thus permit the cope and the drag to come together,the following device is provided. A counter-weighted bell crank 38 ismounted on the upper presser head 4, and the upwardly extending arm ofsaid lever is beveled off and provided with a shoulder 39. Journaled onthe upper cross head is a horizontal rook shaft 40 whose short arm 41 isprovided with a pin 42 which lies normally in the path of the beveledportion of said bell crank lever. This rock shaft is provided with longarms 43 extending downwardly below the trackways l1 and provided withelongated longitudinal slots 44 therein. Through these slots extend pins45 which are mounted upon slides 46 which work in guideways 47 providedtherefor on the trackways 11. Said arms 43 are adjustable longitudinallyof the rock shaft to conform to the adjustment of the trackways. Thatis, the arms 43 are preferably provided with sleeve portions at theirupper ends which are slidably fitted over the shaft 40 and secured inadjusted positions by set-screws as shown more clearly in Fig. 6. Theupper presser head is provided with a guard or keeper 48 into which theupper end of the bell crank lever is guided during the latter part ofits upward stroke. By this arrangement, the upward movement of the upperpresser head causes the beveled end of the bell crank lever to bearagainst the pin on the short arm of the rock lever, whereby the arm ofthe bell crank lever is guided underneath the keeper. As the upwardmovement of the presser head continues, the shoulder on the bell cranklever bears against the pin on the rock arm causing the oscillation ofthe rock shaft and of the long arms mounted thereon. The movement ofthese long arms is transmitted to the slides,

which in turn bear against the match plate and push or eject itforwardly out of alinement with the presser-head. Vhen the upperpresser-head has reached the limit of its upward movement, the beveledend of the bell crank lever has moved underneath the keeper and theshoulder on the bell crank lever is released from under the pin on theshort arm on the rock-shaft which carries the long arms of the ejectormechanism. The slides which eject the match-plate are then free to bemoved back into normal position without necessitating the lowering ofthe upper presser-head.

Mounted on the lower presser head 5 of the frame and on a bracket 49extending forwardly therefrom are beveled trackways 50; and on thesetrackways is a slide 51 which is provided with V-shaped grooves fittingover said trackways. This slide 51 is provided with a handle formanipulating it and constitutes a convenient support for the finishedmold.

The operation of my machine is as follows: The match plate is laid onthe upper trackways 11 in an inverted position and the drag is placed onand secured to said match plate and is then filled with sand, andprovided with a follower plate 53 which is locked so as to remain inposition when the drag is inverted. The locking of the fol lower ispreferably effected by providing an inwardly overhanging plate or ledge54 on the edge portion of one end wall of the drag 3t) and rabbeting oneend 55 of the follower plate 53 so that it can fit under said plate orledge on the drag. The opposite end por tion 56 of the follower plate 53is held by a member 57 hinged on the outer side of the side wall of thedrag and having a laterally bent end portion 58 which projects over theouter face of the follower plate. The match plate with the drag securedthereto is then inverted and placed on the upper trackways 11. The copeis then applied, filled with sand and provided with a follower plate 27,and then the entire mold is shifted into vertical alinement with thepresser-heads. The main hand lever or levers 8 are then actuated.causing the presser-heads to bear against the respective follower platesand thereby compress the sand in the mold. The downward movement of theupper presser head causes the hooks thereon to first swing aside andthen underneath the cope pins. Thereupon the hand lever 24 ismanipulated to raise said hooks and thereby clamp the follower plate andthe cope firmly against the upper presser-head. The upward movement ofthe lower presser-head causes the tripper pins 34 to bear against thespring latches on the drag and thereby disengage the drag from the matchplate. Vhen the movement of the main actuating levers 8 is reversed, theupper presser-head rises carrying with it the cope, and the lowerpresser head goes down carrying with it the drag; in the meanwhile, thematch plate remains on the trackways 11 until the upward movement of theupper presser head carries its countcrweighted bell crank lever againstthe pin 42 on the short arm of the rock shaft 40, whereupon therocleshaft is rocked and the long arms 43 thereon move the ejector barsor slides horizontally to bear the match plate endwise of the trackwaysand out of the path of the presser-heads. hereupon, the hand lever isoperated to move the presser heads toward each other, whereby the copeand the drag are brought together, thereby finishing the mold.

It is noted that the two presser-heads move simultaneously; but, as thematch plate is supported by the trackways during the operation of thepresser-heads, it is possible to compress the sand in the cope to agreater extent than the sand in the drag. For this purpose, the heightof the trackways and the strokes of the respective presser-heads areadjusted as hereinbefore described.

Obviously, my device admits of considerable modification withoutdeparting from my invention, and therefore I do not wish to be limitedto the specific construction and arrangement hereinbefore described.

What I claim is:

1. A molding machine comprising a frame, presser-lieads movably mountedin said frame, means for supporting a match plate between saidpresser-heads, a match-plate adapted to support the drag, means forsecuring the drag to said match-plate, and means for disengaging saidmatch plate from the drag of the mold, said means comprising membersmovable with the lower presser-head in position to cooperate with a partof said means which secures said match plate to the drag.

2. A molding machine comprising a frame, presser-heads movably mountedin said frame, means for supporting a match plate between saidpresser-heads, a match-plate adapted to support the drag of the mold,means on said drag adapted to engage said match-plate, and means forautomatically disengaging said match plate from the drag of the mold,said last-mentioned means comprising members adj ustably mounted on thelower presser-head and arranged to cooperate with the securing means onsaid drag.

3. A molding machine comprising a frame, presser-heads movably mountedin said frame, means for supporting a match plate between saidpresser-heads, a match plate adapted to support the drag of the mold, acatch on said drag arranged to engage said match-plate, means fordisengaging said match plate from the drag of the mold, said disengagingmeans comprising members adjustably mounted on the lower presser head inposition to disengage the catch which looks said match plate to thedrag, and means for shifting said match plate from between said presserheads.

4. The combination with a molding machine comprising a frame, presserheads movably mounted in said frame and means for supporting a matchplate between said presser-heads, of a match plate mounted on saidsupport and having holes therethrough and a drag having spring latchesinterlocking with said holes, the lower presser-head having membersthereon arranged to bear said latches out of engagement with said holeswhen said lower presser head is raised.

5. The combination with a molding machine comprising a frame,presser-heads movably mounted in said frame and means for supporting a,match plate bet-ween said presser-heads, of a match plate mounted onsaid support and having holes therethrough and a drag having springlatches interlocking with said holes, the lower presser-head havingmembers thereon arranged to bear said latches out of engagement withsaid holes when said lower presser-head is raised, said members beingadjustable vertically.

6. The combination with a molding machine comprising a frame,presser-heads movably mounted in said frame and means for supporting amatch plate between said presser-heads, of a match plate mounted on saidsupport and having holes therethrough and a drag having spring latchesinterlocking with said holes, the lower presser-head having membersthereon arranged to bear said latches out of engagement with said holeswhen said lower presser-head is raised, said members being adjustablevertically and laterally.

7. A molding machine comprising a frame, presser-heads movably mountedin said frame, and horizontal trackways adapted to support a match platebetween said presser-heads, and a reciprocatable slide arranged to movesaid pattern along said track, and means mounted on the upperpresser-head for actuating said slide.

8. A molding machine comprising a frame, presser-heads movably mountedin said frame, and horizontal trackways adapted to support a match platebetween said presser-heads, and a reciprocatable slide ar ranged to movesaid match plate along said track, and means mounted on the upperpresser-head for actuating said bar, said means comprising a rock shaft,a counterweighted bell-crank on said upper presserhead in position tobear against one arm of said rock shaft, the other arm of said rockshaft having an elongated slot cooperating wit-h a pin on said slide.

9. A molding machine comprising a frame, presser-heads movably mountedin said frame, and traclrwa-ys adapted to support a match plate betweensaid presserheads, said trackways being adjustable vertically.

10. A molding machine comprising aframe, presser-heads movably mountedin said frame, and trackways adapted to support a match plate betweensaid presser heads, said trackways being adjustable as to width.

11. A molding machine comprising a fran'ie, presser-heads movablymounted in said frame, and traekways adapted to support a match platebetween said presserheads, said trackways being adjustable verticallyand for width.

12. A molding machine comprising a frame having uprights, presser-headsmovably mounted in said frame, housings vertically movable on saiduprights, horizontal bars adjustably mounted on said housings andtrackways on said bars adapted to support a match plate between saidpresserheads.

13. A molding machine comprising a frame, presser-heads movably mountedon said frame, means for supporting a matchplate between saidpresser-heads and means for actuating said presser-heads, said meanscomprising a manually operable lever and links pivotally connected tosaid lever and to the respective presser-heads, and means whereby thecope may be pressed harder than the drag.

14. A molding machine comprising a frame, presser-heads movably mountedon said frame, means for supporting a match plate between saidpresser-heads and means for actuating said presser-heads, said meanscomprising a manually operable lever and links pivotally connected tosaid lever and to the respective presser heads, and means for varyingthe point of connection between said lever and said links.

15. A molding machine comprising a frame, presser-heads movably mountedin said frame, and means for supporting a match plate bet-ween saidpresser-heads, the upper presser-head having hooks depending therefromin position to engage cooperating elements provided therefor on the copeof the mold, said hooks being mounted to move vertically on said upperresser-head, and means on said upper presser-head for lifting saidhooks.

16. A molding machine cou'iprising a frame, presser-heads movablymounted in said frame, and means for supporting a match plate betweensaid presser-heads. the upper resser-head having a vertically movablebar provided with gravity hooks in position to engage cooperatingelements provided therefor on the cope of the mold, and a wedge blockmovable under said bar to raise the same.

17. A molding machine comprising a frame, presser-heads movably mountedin said frame, and means for supporting a match plate between saidpresser-heads, the upper presser-head having a vertically movable barprovided with gravity hooks in position to engage cooperating elementsprovided therefor on the cope of the mold, and a manually operable wedgeblock movable under said bar to raise the same.

Signed at Belleville, Illinois, this 25th day of August, 1909.

HENRY RIPPLINGER.

Witnesses F. WV. 'BEIMECKE, EDMUND BURKE.

